Greatest Common Factor of 18, 80, 990

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 18, 80, 990 by common division method
• Greatest Common Factor of 18, 80, 990 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 990

List of positive integer factors of 990 that divides 990 without a remainder.

1,2,3,5,6,9,10,11,15,18,22,30,33,45,55,66,90,99,110,165,198,330,495,990

Greatest Common Factor

We found the factors 18,80,990 . The biggest common factor number is the GCF number.
So the greatest common factor 18,80,990 is 2.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 73, 61, 766
• GCF of 80, 18, 841
• GCF of 39, 83, 244
• GCF of 27, 28, 141
• GCF of 78, 45, 657

1. What is the GCF of 18, 80, 990?

Answer: GCF of 18, 80, 990 is 2.

2. How to Find the GCF of 18, 80, 990

Answer: Greatest Common Factor(GCF) of 18, 80, 990 = 2

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(18, 80, 990) = 2.